Langman's medical embryology / T. W. Sadler ; original illustrations by Jill Leland ; computer illustrations by Susan 1. Sadler-Redmond ; scanning electron micrographs by Kathy Tosney ; ultrasound images by Nancy Chescheir and Hytham Imseis.

Includes index.

Introduction to molecular regulation and signaling -- Gametogenesis: conversion of germ cells into male and female gametes -- First week of development: ovulation to implantation -- Second week of development: bilaminar germ disc -- Third week of development: trilaminar germ disc -- Third to eighth weeks: the embryonic period -- The gut tube and the body cavities -- Third month to birth: the fetus and placenta -- Birth defects and prenatal diagnosis -- The axial skeleton -- Muscular system -- Limbs -- Cardiovascular system -- Respiratory system -- Digestive system -- Urogenital system -- Head and neck -- Central nervous system -- Ear -- Eye -- Integumentary system.

Reaching far beyond the 9 months of gestation and the first year of life, embryonic development has ramifications for health throughout the human lifespan. Improved reproductive outcomes and healthier babies, while the specific goals of obstetricians, are areas of clinical relevance for all healthcare professionals. This book facilitates understanding of the molecular, cellular, and structural factors contributing to human development. With its trademark approach combining economy of text with exceptional artwork, this revised 12th edition clearly and effectively presents embryology in a clinical context for students of medicine and the health professions. Enhancements to the 12th edition include: An all-new introduction that covers the history and clinical relevance of embryology; Current research and detailed coverage of molecular regulation and signaling, the cardiovascular and digestive system, and the limbs; and each chapter includes overview figures that provide a visual introduction to the material. -- from Back Cover.